User manual

29Publication 1756-RM093F-EN-P - January 2010 29
Chapter 3
CIP Safety I/O for the GuardLogix Control
System
Introduction
Overview
Before operating a GuardLogix safety system containing CIP Safety
I/O modules, you must read, understand, and follow the installation,
operation, and safety information provided in the publications listed
in the SIL 3-Certified GuardLogix Components
tables on page 16.
CIP Safety I/O modules can be connected to safety input and output
devices, allowing these devices to be monitored and controlled by the
GuardLogix controller. For safety data, I/O communication is
performed through safety connections using the CIP Safety protocol;
safety logic is processed in the GuardLogix controller.
Typical Safety Functions of
CIP Safety I/O Modules
The following is treated as the safe state by CIP Safety I/O modules:
• Safety outputs: OFF
• Safety input data to controller: OFF
The CIP Safety I/O modules should be used for applications that are
in the safe state when the safety output turns OFF.
Topic Page
Overview 29
Typical Safety Functions of CIP Safety I/O Modules 29
Reaction Time 31
Safety Considerations for CIP Safety I/O Modules 31
CIP Safety Network
Safety
Status
Safety Output, OFF
Safety
Input
Data